//============================================================================
//Gios Pdf.NET - A library for exporting Pdf Documents in C#
//Copyright (C) 2005  Paolo Gios - www.paologios.com
//
//This library is free software; you can redistribute it and/or
//modify it under the terms of the GNU Lesser General Public
//License as published by the Free Software Foundation; either
//version 2.1 of the License, or (at your option) any later version.
//
//This library is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//Lesser General Public License for more details.
//
//You should have received a copy of the GNU Lesser General Public
//License along with this library; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//=============================================================================
using System;

namespace lwzlz.Common.Gios.Pdf
{
    /// <summary>
    /// a Column of a PdfTable
    /// </summary>
    public class PdfColumn : PdfCellRange
    {
        internal int index;
        internal double Width;
        private double compansatedWidth = -1;

        internal double CompensatedWidth
        {
            get
            {
                if (this.compansatedWidth == -1)
                {
                    double sum = 0;
                    foreach (PdfColumn pc in this.owner.Columns)
                    {
                        sum += pc.Width;
                    }
                    this.compansatedWidth = (this.owner.TableArea.width / sum) * this.Width;
                }
                return this.compansatedWidth;
            }
            set
            {
                this.compansatedWidth = value;
            }
        }
        internal PdfColumn(PdfTable owner, int index)
        {
            this.owner = owner;
            this.index = index;
            this.startColumn = index;
            this.endColumn = index;
            this.startRow = 0;
            this.endRow = this.owner.rows - 1;
        }
        /// <summary>
        /// sets the Relative Width of the Column. For example: if the relative widths of a 3 columns
        /// table are 10,10,30; the columns will respectivelly sized as 20%,20%,60% of the table size.
        /// </summary>
        /// <param name="RelativeWidth"></param>
        public void SetWidth(int RelativeWidth)
        {
            if (RelativeWidth <= 0) throw new Exception("RelativeWidth must be grater than zero.");
            this.Width = RelativeWidth;
            if (this.owner.header != null) this.owner.header.Columns[this.index].SetWidth(RelativeWidth);
        }

    }
}
